eupatorium_perfoliatum
1. [ noun ] (botany) perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine
Synonyms: agueweed thoroughwort boneset
Related terms: herb Eupatorium
Similar spelling:   Eupatorium_maculatum
  Eupatorium_purpureum
  Eupatorium_capillifolium
  Eupatorium_coelestinum
  Eupatorium_cannabinum
  Eupatorium_aya-pana